Which of the following measurements is likely to have the least variation (i.e. which dataset would have the smallest standard deviation and IQR)? The miles per gallon in a randomly selected sample of cars from the 405 freeway. The volume of liquid per bottle in a random sample of unopened 2-liter bottles of soda. The weights of pumpkins from a pumpkin patch. The SAT scores of a class of graduating high school seniors.
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
Which of the following measurements is likely to have the least variation (i.e. which dataset would have the smallest standard deviation and IQR)?
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